I'm your size , 5' 102 lbs. The fun 2 won't be too small for you, it'll be too big if anything, I've never actually paddled that boat, but it feels big on dry land. I have paddled the1.5 and that too small, very tippy especially for a beginner.
I paddle the Star which is more of a river runner that a play boat on me, but I can surf it great just can't throw it around and I feel comfortable in it in class 3. I also paddle the Little Hero. That would be the boat that I'd recommend for just starting out, but still wanting to surf a little. You'll feel comfortable going down rivers in it and would be fine in it if you decide to step it up a bit too. Plus, the Little Hero is now considered a kids boat so it's cheaper! The Diesel 60 might be a good choice too, just not as familiar with it.